Key-seating machine



c. WlNKLERf KEY SEATING MACHINE. APPLICATION FILED JUNE 2, 192 0.

Patented June 20, 1922.-

I 2 SHEETS-SI IEET lair/17$? Mill k;

c. WINKLER.

KEY SEATING MACHINE.

APPLICATION FILED JUNE 2, I920.

Patented June 20,1922

Illli! CHRISTIAN" WI KnEaPOnrOR- LAND, OREGON;-

Beit known that 'I, CHRISTIAN WVI KLEn, af'citizen of the United States, and: a res dentv of Portland,l county'- of "Multnomah;

useful lmprovement in" Key seating Machines. of which the following is aspecificafl I tion'. a

'This invention relates-generally to Inachines-forxcutting keyways in the hub's'of gears, pulleys, wheels' etc and has particularly to do with an improved type of this class of-maehinea The main object of my invention is to provide a key-seating machine that will be simple and economical inconstruction, yet

- at the same time easy and capable in operation.

To this end, I have invented the machine shown in the accompanying drawings, of which Fig. 1 is a perspective view of my machine;

Fig. 2 is a perspective view of details of my machine. showing them in their interrelated positions;

Fig. 3 is a longitudinal section of my ma-' chine; and

Fig. 4 is a transverse section of the same.

In these drawings, a represents the frame of the machine. Said frame a has vertical sides I), the upper portions of which are formed with longitudinal grooves b adapted to act as guideways.

A face plate 0. is pivotally fastened to the forward end, of the frame by pivot pins (Z and clamp bolts 6, the latter adapted to work in the circular slots 7'. V This arrangement permits an angular adjustment of the face plate as suggested by the broken lines of Fig. 3.

The face-plate c is provided with holes 9 which form means ;for' clamping in position the piece to be-worked on.

A member his made with side shoulders 2', an upper groove Land a lower groove is, and thehorizontal wall which forms the topof the groove is. is made with two slotted holes Z and Z. The tool holder m-isadapted to fit freelyin the groove j, of the member h, and is pivotally fastened to said member by a fulcrum pin or.

Holes 0 are providedv at the forward ends ofthe parts so that when desired to move the fulcrum, the pin it may be moved to the holes 0. y

Specification of Letters P tent.

' Appl ication'filed- 1111102, 1920. SerialNo. 386.013.

Patentedflune 20, 1922..

A;stud fifis'threadedinto the'horizontal walloftheniembe'rhandprojects freely up" through the-tool holder A' compression' 1 coil-springq, and retaining, nut '1' form' 'a Stateof Oregon; have invented anew and tool" holderim'fon' its fulcrum i 77h 7 yielding-connection which tends to rock thefv Thetool s is fastened in-theforward I of the tool-holder by a-set screw "6, and may be usedintheposition as-shown' or in a reversed posltion; r

th member h, as"shown"clearly in.Fig. 4.

This rack-is providedlwith two beveledlug's This arrangement of parts causes the plugs to to be lifted vertically upward as the rack moves to the right from in Fig. 3,and vice versa.

' A shaft 00, having a pinion y fixed thereon its position shown and in mesh with the rack u, is j'ournaled in the frame: of the machine. Said shaft may be rotated by hand or by a power element, whichever is most convenient to the user.

- Adjustable screws a and z" are mounted in the'tool holder m, and are positioned in vertical alinement with the plugs 10.

The general operation of my machine is as follows:

When the parts are positioned as shown in Fig. 3, the tool adapted to cut a straight key-way in the work fastened on the faceplate. The shaft 00 is rotated so as to drive the rack and thus the tool in the proper-direction.

. The initial movement of the rackcauses" the block w to raiseand bear against the end of the screw 2' so as to rock the tool holder slightly counter clockwise. This ac-. -tion lifts the tool to its cutting position.

Further movement of the rack will cause the tool to performitscutting operation. A

the block w to drop. thereby permitting the tool holder to rock slightly clockwise and thus draw the tool away from the work to its original position. The .depth of cut of the tool may be regulated by the adjusting screw z.

reverse movement of the rack will then cause In case it is desired to reverse the tool so as to cut a slot in the lower part of the Work, the tool is turned end for end, and the fulcrum pin n is changed to the holes 0. A similar but opposite action of the machine will then be possible.

I claim: 1. In a machine of the character described,

'in said slide, the tops of said studs being beveled and a correspondingly beveled block resting on each stud, a tool holder pivoted in said slide with a, screw at each end in said tool holder, said screws adapted for seating on said blocks, yielding means adapted to hold either of said screws in engagement with its block.

2. In a machine of the character described, a main frame, a horizontally reciprocable slide mounted in said frame, a rack carried by the bottom of said slide, a pinion meshed with said rack, said rack having studs, one at each end, projecting through holes in the bottom of the slide, said holes being adapted to permit'said rack limited sliding'motion in said slide, a tool holder pivoted in said slide with a screwat each eIldfll'l said tool holder, said screwsfadapted for seating on said blocks, yielding means adapted to hold either-or" said screws in engagement with its block, and means cooperating with said screws in said blocks whereby the reciprocating of said slide will cause a corresponding tilting of the tool holder on its pivot.

' CHRISTIAN wrNKL n. 

